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Finding the Fourth Proportional to 57,813.54, 79,762.74 and 35,145.42

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Solution

The fourth proportional to 57,813.54, 79,762.74 and 35,145.42 is: 48,488.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,813.54 : 79,762.74 = 35,145.42 : x
  2. Step 2: Convert to fraction form
    57,813.54/79,762.74 = 35,145.42/x
  3. Step 3: Cross multiply
    57,813.54x = 79,762.74 × 35,145.42
  4. Step 4: Simplify right side
    57,813.54x = 2,803,294,997.65
  5. Step 5: Solve for x
    x = 2,803,294,997.65/57,813.54
  6. Step 6: Final answer
    x = 48,488.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.